Scale.



L. JAEMGHBN.

sang. n r APPLICATION FILED APB. 30.1908.

Patented June 1, 1909.

2 SHEETS-SHEET 1,

1 m xnwssms v mum we.

L. JAENIUHEN.

SCALE.

APPLICATION FILED APE. 30.1908.

- Patented June 1, 1909.

2 SHEETS-SHEET 2.

UNITED @FA Application filed. April 30, 1908.

i N, ASSIGNOR TO THE SCALE- tOMl'iiNY. OF DETROIT, MIPHIG; h, A CORPORXJION.

Specification of Letters Pa-cent.

ii DA R D C OI. iPll Serial No. 130,205.

To all whom 'LZ may concern:

it known that l, lioUis JAnNicni'JX, a citizen of the linited States, residing; at Detwo parts of the drum is a pinion ili'till), in the county of ayne and State of i Michigan, have. invented certain new and useful linproven'ients in Series, oi which the i following is a specification.

This invention relates to iinprm'einents in scales and more particularly to spring lialonce cmnputing; scales embodying a platform and platform lever mechanism, a coin 'puting' druin, springs and means connecting; the lever mechanism with the springs and i drum to actuate the drum in proportion to 3 the weight placed upon the platform.

The nivcntion consists in providing a cheap, compact and eilicient construction and uselul i'eaturcs 3 embodying certain new in the construction of the mechanism eonmeeting the platform levers with the springs 1 and drum and in the construction of a suitahle dash-pot.

The invention lurther consists in provid in; an ellicient rlwrinosiatic mechanism to correct the variations in the springs due to varying temperatures '7 n an eye 15 and has a vertical hole to receive a 70 j pin 16, said pin being provided at its upper end with a head 1? having rearwardly e tending cars 1 between which is pivo rod 19 formed integral with or nit-act the lower end of the rack at its upper c. 7:3 and extending dowmvard :1 short dir e heyond the point? at which it pi oted said ears. -l hori'lzontnl here or re formed in the head l7 and in this ZQtt s extending t'ln'ough the head into cri so 'lo this end tl :i invention, consists in the 3 particular construction, arrangement and combination of parts all as licreinalier niore nient with the downwardly projectingoi on the rod it) is a pin 11 provided collar 22 engagi r the inner end cess. A plug: provided with an :iXkil fully described and particularly pointed out 1 in the claims, reference being had t the a coinpairyiiig drawings in which l igure l is a vertical section of a device embodying phitl'orin and platform levers in side elerntion; Fig. 2 is a Vertical section oi the same on the line .r-.r ol Fig. t; Fig: 33 is a detail hliOWlliQ a rear elevation of the head to which the lower ends ol the springs are attached Fig. t is :i detail showing in clei 'ation a inodilied arrangement of springs and thermostatic devices to which they are attached; and Fig. 5 is a siinila r View showing a moditied lorin ol thermostat.

As shown in the drawings, l is a. base u )on which is erected or liol ow standan '3 end with a cylindrical openings in its sides through markings upon a computing: druin 5 may be seen. This drum is made secured upon n horizontal shalt t) which is supported at its ends in the ends of the easing, all as in the usual construction of such drums, and upon the shaft 6 the invention and sunning thev suitable 1 a vertical pedestal prm'ided nt its upper casing 3 having sight 1 which the;

in two parts and between the opening lor the end ol the pin it is s into the outer end of the recess and upon the pin hetwecn t 1, pl la r 22 is a coiled. spring 24.

in the forward side oi the head a notch to receive an. adjnsiing nut i i screw-llirendcd shanl; ol the pin-1o, an-v tendinn upward on the head ch sic d\' the lower end .20 of the rod it? i 7 guide- Zlli. A small pin or other 'pro em the pin til propels lat rally thei: E75

tween the guidwlufls to prerci'it he turn 7 of said pin to in the head. ll turning tht ndjustiug-nul. 35 the pin lo ina he ndjusird relatively to the head and thus the cornuclion lengthened or shorten d and when so 300 adjusted, the pin is held hy a st 37% The pin 21 normally held in Malta-ct with the end 20 of the rod it) h its g; nhich tends to turn the rod on. its pivor and holds the rack S in engagement wiil it pinion. The tension oi this sprir may he ad ciscd the main lover oi lnniisni upon rind and to a. i

hy screwing tilt plug 3 lever is attached by suitable links a yoke 31. A draft-rod 32 is provided with a 31001: 33 at its upper end to engage the eye 15 and its lower end is screwthreeided to enga e an axial screw-.thresded opening in the yo .6, 31. The platform ieverssre thus ad- ;justebiy e iecterl (to Jim springs 11.

1. See-mes se the'lm-se and extending up between the forked ends of the lever 29 is is e eyiindrie'el oasis-pot srlepted to con- I seen Oil'Ol eth r suitable fluid and in which suitable piston fies; The dash-pot is provided Wit-l1 a esp 36 and through an axial 7 opening in esp ds, a connecting rod 37 which is pivotslly attaelierl at 38 to the lewer end of the draft-rod 32 and stiis iower end the connecting rod is attached to the aiston by mexins of s univer This joint 1s formed by proviziing the @islon with an axial bore extending iislflweytnro'ugh the piston and providing: ball 39011 the lower end of the eonneeiing rod which is secured within lower end or the bore by means of e cup 40 secured min the bore in any suitable marines, fiireurnfe1-entie grooves 41 are provided iii the piston to prevent the liquid fIOBlilBWiZTd around the v iston and to permit she iqnid to pass to his upper side of the iston upon its 3- I downward movement e 3 hole 42 is providecl therein. By making the piston of such a-sizethat the fluid is prevenaedfrom messing up around itend roviding the hole ior blle passsgepf the fluid, binding of the 3'5 pi eon in' iile eyiinder sensed by its tilting, is gjrevented. To defies-i; the liquid as it passes up izhrough saiai'liole' and prevent its escape "hrough the esp around the connecting rod, said esp is provider} with an inwardly o projeeting some through the axis of which the eonneeting ezstencis, and to prevent aii ossibility of iesksge shipping, the cap 36 38 provided in its upper side with s screwohresde'i socket 4:4 receive it screw ,tisreeiled ping which is permanently seeared soon she eenneebing reel near its upper end. ping is ioesi ed so far up on the stem thee it does not inserfere with thenormeiworlring of the by coming in cen meme-ii the dash-pot, but by forcing the end of she lever 29 downward ebnorins 1y or v in}? oiseonneoting the connecting rod 32 ,-fron1 the eye 15, the plug may be engegecl with the socket in the rep and screwed jtherein effeetneliy sealing illB dash-pot V for shipment.

Asshown in Fig. 4, the springs 11 are is isehei'l to the bar 12 by means of L 'shsped bers'efi, the bars being steamed at one end $0 the bar 1 and provided. as the other end an externally screwsiiresded plug as engegeiiie end ef tne coil of the spring and secure the spring theree o. These Uesheped bersere formed of two fiat strips of metal, the strip on lake outer sicie of the U being of a o Vbinetion with platform e i n shaft, so. indicating" drum on seems i temperature than she st of the U so that es the creases and the springs 11 ien metal will be expanded n10 metal of the U-bar and by a yoke -18, said yoke spenn: end of the pin 16.

A modified form of tl errn'=. Fig. 5 and consists of oer U-slmpod loops and upon the Y eaehsof these loops is secured of a metal having a. rlifi'erent expansive force. The ends of the bar 49 embrace the coilsprings 11 intermediate their ends and use out of vertical position. When the temperature increases and the springs lengthen, the

loops of the thermostat sis out by the greater expansion of the metsi on inner sideof the loops and time the coil springs are further spread a esr'b sne the efieer of their expansion counter-sate i thermostatic ma-rs may be USO-Ll fore do not wish to lim" tieuiar arrangement shown. vious that the two ineb-ils may be arranges with tire met greatest expansion upon either is 3131 91 or the outer side of the loop, desired 50 the ioop to eii-lier expand or 001 the rise of temper-sh re.

Having thu 111 describes whet I eisim z l. in RUiEGIiIESUi-iC sprin seeie the 1 m binstion wish a e se, of s pe tending i'ipwsrd 11 in the ease, plenum: is-

vers supported upon the u. 02 one 01" said levers extene into the R :1 end oi send pedestal, 1min leg drum supported upon the ups-e1- encl or" said pedestal, s balance-spring su'ppei'teri at ts nnper end and extending downwsro witlnn the hollow pedestal, means within the pedestal eonneoi mg the iower end of said SY,')2U1 with the end of said pietiorin lever, means operated by said lever and extending upw lti raisin the s z [Lie s1: us:- 0"

ede hlto operate l mu 1, 1 u r is 4 a with enii within the lower end of the pedestal having a piston eonneerealwitii the .zneens connecting the series and oiatforn'i lever.

i u i 2. In an automatic swing scale, the in inion on said shaft, reek so eng inion and turn the drum, is belsiiee-spring secured 1L5 upper end beiow the drum and extending ilowm'm, d therefrom, a head to anally hold thesespringspressed laterally which the lower end of the spring is attached, a verticallg adjustable pin carried by the head, s ro end end pivotally attached to said pin near its lower end and extending downward beyond its pivot, spring-actuated means carried by the pin to enga e the downwardly projecting end of the to and turn said rod on its pivot to hold the rock in engagement with its inion, and means connecting the platform overs end said head,

3. In an automatic spring scale, the combination with platform lovers, of an indicating drum, a pinion to turn the drum, a rack enge ing the pinion, balance-springs, a head to which the springs are attached at one end and provided with an opening, a screw threaded pin in said opening, an adjustingnut engaging the pin to adjust the pin vert cally, atera ly extending'ears on the upper end of the pin, a rod attached at its upper end to the rack and meet its lower end pivoted between said eons, spring actuated means carried by the pin and eng 'ng the downwardly pro] ecting end of the re means to prevent the turning of the pin and to permit its vertical adjustment, and a draft-rod connecting the platform lejvers and the head.

4; In an automatic spr ng scale, the cornbinetion with platform-lowers, of a horizontel shaft,- an indicating drum on said shaft consisting of two parts, a pinion on the shaft between the parts of the drum, a rack en aginfil said pin1on,-'balance-springs, a he to w 'ell the lower ends of the balance-s rings are sttached, said head being providec. with a vertical hole and e notch in its forward cide an adjustable in having a head and a screwthreaded she extending through the hole, an sdinsting-nut on the pin within the notch, ears on the head of the pin extending laterally therefrom, a rod secured to the rack and pivoted between said ears, a pin extending through a recess in the head of the adj ustable pin into engagement with the downwardly pro'ecting end of the rod, 2. s ring on the pin within the recess, a screw-p ug to close the outer end of the'recess and adjust the spxrin upwardly extending parallellugs on the ca means on the adjustable in engaging between the 111 s, and ,a dra t-rod connectin the platform evers to the head.

5. In an automatic s ring scale, the combination with a base, 0 a hollow pedestal on the base, platform levers on the base, one of secured to the rack at its upperwhich is rovided with a forked end extending into n e lower end of the pedestal, en indicatinr drum upon the u the drum to turn the same, e rock enga ing perend of the pedestdl, a pinion interme late the ends of" the pinion, balance-springs secured at then upper ends below the drum and extending downward within the hollow pedestal, 2, head to which the lower ends of the s rin s are at-' tached, a rods-tteched to the hood ct "its lower end and to the rack at its up er enidj e oke attached to the forked end 0 the plattorm lever, a draft-rod connecting the yoke and said head, a dash-pot within the pedestal expansion of the spring caused by changes in temperature.

7. In a spring scale, the combination with the weighing mechanism thereof, oi s bei slice-spring and s thermostat consisting of a U-shaped member formed oi two thicknesses of inetal of difierent expansions, one end oi said member being fixed to a support endthe opposite end of the nieinberbcnig attached. to one end of the balance-spring and which spring is attached at its opposite end to the weighing mechanism.

8. In a spring scale, the C( fiiblfiiitmn with the weighing mechanism the/Mot, of a pair oi balance-springs connected together and to the wei hing mechanism at their lower ends, and a thermostat for each sprin consisting of a U-sheped member formed 0:. two thicknesses of metal of different expansions, one end of said members being attached to. the u per ends of the springs and the other ends 0 said members being secured to a fixed sup port.

Intestimony whereof I aifix my signature in presence of two witnesses.

LOUIS JAENICHEN. Witnesses; 4

Vin; E. Mann, Lewis E. 

